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Implement Alley Discussion Forum

Three-Point Hitch Implement Fabrication

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jdeereg

11-28-2005 09:24:38

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I am a teacher at a High School in Tennessee. Our Agriculture department's shop class is building three-point hitch implements and I am wondering if there is a standard measurement for the width between lift arms and height between the lift arm pins and the top link pin. I have searched the internet for this information, but I have had no success finding these measurements. If anyone has ever used a John Deere with the blocks that hold the implement still, you know how aggrivating it can be to use an implement that is the wrong width. Any help is greatly appreciated. Thank You.

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jdeereg

12-01-2005 05:47:12

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

Thank you all for your help! Everyone's replies were very helpful. I am very proud of the work these students do in the shop and I want to help them in any way possible to make their projects work better. Thank you all again!

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ironpeddler

11-30-2005 16:21:04

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

I would not make CAT-0 implements most of the compact tractors have gone to what they call a limited CAT 1 hitch. The specs you asked for are here http://www.speeco.com/three-point.asp
If you want to make implements for the sub-compacts like the Kubota BX series use 24" on your bottom pin spacing. 18-20" from lower pins to toplink works on everything except JD I-Match Quick hitches they need 15" spacing.

Three Point Hitch

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Weldon

11-29-2005 07:52:45

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

Standard dimensions for spacing of lower link hitch pins are as follows, measured from the shoulders of the pins.
Cat I hitch pin spacing is 26 7/8 inches . Cat. II hitch pin spacing is 32 1/2 inches. There may or may not be a standard dimension for the location of the top link hitch pin holes above the lower pins. I could not find information relating to it. I doubt if it really matters. Build the equipment with a measurment that looks about right and works well. I did measure some pieces of Cat I and Cat II equipment and both were 18 inches.

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FormerlyPaMike

11-28-2005 15:24:31

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

I just asked this question a few months ago and someone replied. Maybe try searching the archives. I think the vertical distance is 19" for Cat 2 and 21" for Cat 3. I can not remember the horizontal distance, but I think is is around 33" for Cat 2.

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55 50

11-28-2005 15:17:31

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

I got a full set of measurements from my alma mater, NDSU, (North Dakota State University) agricultural engineering dept. Any state university with an ag engrg dept should have that info and supply it free, assuming you are a taxpayer in the state where you ask for the info.

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55 50

11-28-2005 15:15:54

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

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Jerry D in NC

11-28-2005 11:54:48

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

If you will look to the right under Research and Info you will find the category "3-point Specs"

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R. John Johnson

11-28-2005 11:24:48

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

The ASAE (American Society of Agricultural Engineers) created the specifications for Three Point Implements. Try to contact them. A quick Google search should do the trick.

John

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JMS/MN

11-28-2005 19:33:47

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Re: Three-Point Hitch Implement Fabrication in reply to R. John Johnson, 11-28-2005 11:24:48

Their address is www.asae.org. Their website used to have all of those specs. Last time I checked, there was some charge to access the info.

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paul

11-28-2005 09:31:27

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Re: Three-Point Hitch Implement Fabrication in reply to jdeereg, 11-28-2005 09:24:38

Design to fit a quick-hitch, or the implements get a rep as worthless.....

26 inches & 14 inches stick in my mind, but not sure on the 14. I'll assume for cat 1 implements?

--->Paul

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jdeereg

11-28-2005 09:53:43

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Re: Three-Point Hitch Implement Fabrication in reply to paul, 11-28-2005 09:31:27

They are building hay spears, subsoilers, hay unrollers, etc. The most of the implements are cat 1, but some are cat 0 and cat 2. Thanks for the info. Any more info will be greatly appreciated. Thanks!

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